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Heart|Natural|GIA

0.86ct E SI1 Heart Natural Diamond

EX • E/SI1 • GIA 2

Certificate GIA 2

Diamond specifications and retailer prices

From £1,758 GBP
$2,355 USD
As of October 30, 2026
Save £435 GBP (20%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £2,193 GBP at Blue Nile · As of October 29, 2026
View at Blue Nile

About this 0.86ct natural heart diamond

This 0.86ct natural heart sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 3 retailers as of October 29, 2026, with prices from £1,758 to £2,193, a £435 spread on the same certified stone. Blue Nile lists it at £2,193. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.86
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2
Dimensions6.45 × 6.22 × 3.68 mm
L/W Ratio1.04
Top View
6.45 mm6.22 mm0.86 ctE / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2
Side View
Table 58.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 59.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £2,193 GBP|Low: £1,758 GBP|High: £2,193 GBP|Avg: £1,905 GBP
Blue Nile
Retailer 2
Retailer 3
September 26, 2026
Retailer 2£1,758 GBP
Retailer 3£1,910 GBP
Blue Nile£2,193 GBP

2 data points across 3 retailers

3 retailers£1,758 GBP to £2,193 GBP

B
Cheapest Retailer
-
£1,758 GBP
$2,355 USD
B
Retailer 2
-
£1,910 GBP
$2,559 USD
View
Most Expensive
B
Blue Nile
14451453 · Oct 29
£2,193 GBP
$2,938 USD
View
2 more retailers have this diamond
Prices start from £1,758 GBPSave up to £435 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B
0.86ct Heart
£1,758 GBP